Knowing USNews used peers as a metric, Texas Tech once claimed 55 schools were its peers. 27 of them were AAU members.
Data extracted on 9-14-2017
from
http://www.chronicle.com/interactives/peers-network?
Texas Tech University
Lubbock, TX
55 Colleges selected as peers by this college
Arizona State U, Tempe
Auburn U main campus
Clemson U
Florida State U
Georgia Inst of Tech ( AAU )
Indiana U, Bloomington ( AAU )
Iowa State U ( AAU )
Kansas State U
Louisiana State U, Baton Rouge
Michigan State U ( AAU )
Mississippi State U
North Carolina State U
Ohio State U ( AAU )
Oklahoma State U, Stillwater
Oregon State U
Penn State, U Park ( AAU )
Purdue U, West Lafayette ( AAU )
Rutgers U, New Brunswick ( AAU )
Texas A&M U, College Station ( AAU )
U of Alabama, Tuscaloosa
U of Arizona ( AAU )
U of Arkansas, Fayetteville
U of California, Berkeley ( AAU )
U of California, Los Angeles ( AAU )
U of Colorado, Boulder ( AAU )
U of Connecticut
U of Florida ( AAU )
U of Georgia
U of Illinois, Urbana-Champaign ( AAU )
U of Iowa ( AAU )
U of Kansas ( AAU )
U of Kentucky
U of Louisville
U of Maryland, College Park ( AAU )
U of Massachusetts, Amherst
U of Michigan, Ann Arbor ( AAU )
U of Minnesota-Twin Cities ( AAU )
U of Mississippi
U of Missouri, Columbia ( AAU )
U of Nebraska, Lincoln
U of North Carolina, Chapel Hill ( AAU )
U of Oklahoma, Norman
U of Oregon ( AAU )
U of Pittsburgh main campus ( AAU )
U of Rhode Island
U of South Carolina, Columbia
U of South Florida
U of Tennessee, Knoxville
U of Texas, Austin ( AAU )
U of Virginia ( AAU )
U of Washington ( AAU )
U of Wisconsin, Madison ( AAU )
Virginia Tech
Washington State U
West Virginia U, Morgantown
If there is any error on the ( AAU ) notation you can blame me.